<template>
  <el-upload
    class="avatar-uploader"
    action="/api/upload"
    :show-file-list="false"
    :on-success="handleAvatarSuccess"
    :before-upload="beforeAvatarUpload"
  >
    <img v-if="imageUrl" :src="imageUrl" class="avatar" alt="" />
    <el-icon v-else class="avatar-uploader-icon"><Plus /></el-icon>
  </el-upload>
</template>

<script  setup>
import { ref, onMounted, watch } from "vue";
import { ElMessage } from "element-plus";
import { Plus } from "@element-plus/icons-vue";

const emit = defineEmits(["update:modelValue"]);

const props = defineProps({
  modelValue: { type: Array, default: [] },
});

watch(props, (newValue, oldValue) => {
  console.log("watch 已触发", newValue);
  if (props.modelValue.length > 0) {
    imageUrl.value = props.modelValue[0].url;
  }
});

const imageUrl = ref("");

onMounted(() => {
  console.log("props.modelValue: " + props.modelValue);
});

const handleAvatarSuccess = (response, uploadFile) => {
  if (response.status === 1) {
    console.log(`response: ${JSON.stringify(response)}`);
    imageUrl.value = response.data[0].url;
    emit("update:modelValue", response.data);
  }
};

const beforeAvatarUpload = (rawFile) => {
  //   if (rawFile.type !== 'image/jpeg') {
  //     ElMessage.error('Avatar picture must be JPG format!')
  //     return false
  //   } else if (rawFile.size / 1024 / 1024 > 2) {
  //     ElMessage.error('Avatar picture size can not exceed 2MB!')
  //     return false
  //   }
  return true;
};
</script>

<style scoped>
.avatar-uploader .avatar {
  width: 178px;
  height: 178px;
  display: block;
}
</style>

<style>
.avatar-uploader .el-upload {
  border: 1px dashed var(--el-border-color);
  border-radius: 6px;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: var(--el-transition-duration-fast);
}

.avatar-uploader .el-upload:hover {
  border-color: var(--el-color-primary);
}

.el-icon.avatar-uploader-icon {
  font-size: 28px;
  color: #8c939d;
  width: 178px;
  height: 178px;
  text-align: center;
}
</style>
